champion



s; & T. CHAMPION. PADDLB WHEEL;

No.10,35 9. 'PatentedJan. "3,1854.

an d operation of the same, reference being had section through the hub or shaft to show the p of the cam-frame for automatically shifting llnrrsn dramas SAMUEL CHAMPION AND THOMAS CHAMPION, OF ASlllNG-TORD ISTRICT OF COLUMBIA.

lMPROV'EiVlENT in FEATH same PADDLEMWHEELS.

Specification forming part of Letters Patent No. H0359, dated January 3,15%.

to the annexed drawings, making a part of this specification, and in which- Figure 1 represents an elevation of our improved propeller; Fig. 2, an inverted view of the same; Fig. 3, ail-elevation of the propeller as adapted to turn in a direction Opposite to that of Fig. 1; Fig. 4, a perspective view of one of the double paddles detached; Fig. 5, a

shank of the blades or paddles passing through thesame; Fig. 6, a perspective view.

the paddles upon their shanks, and Fig. 7 end View of the propeller embracing I a modification of our improvement.

Letter A represents a portion of the guard or frame-Work. of the vessel, which supports the shaft of the propeller; B, the shaft; 0, the blades or paddles; D, the hub;- E, the shank or arm WlllCll connects the blades; F, oblong projections on the-shankpf each blade, by which the feathering of eachblade is partially elfected; G,-the cam-guides, stationary except when moved. to reverse the motion of the propeller, by Which,.in connection'with the oblong buttonsF. the feathering of the blades is completed; H, the arms of the camframe, to which the guides G are attached, and. by reversing which to the opposite side of the guard-frame the paddles are placed in position for eifective operationin an opposite direction, and by dropping said arms to the perpendicular in the water'the lower blades will all be brought to a feathered positiomso as to offer but little resistance to the sailing of the vessel when by accident or otherwise the propeller may not housed; l, the boss of the cam'guides, fitted to the shaft B in a manner similar to ordinary eccentric, or as represented in-the inverted View, Fig. 2, and in theperspective view, Fig. 6.

The distinguishing features in this pro peller arerollers.

First. The continuonsarm or arms passing directly through the hub or shaft, with a blade at each end fixed at right angles with each other, so that in feathering the lower blad'ein the water after. it has exerted all its propelling force the same act shall withoutany further arrangement place the upper. blade in full position for eflicient action. Any number of arms and blades may be added by ex.- tending the cam arrangement.

Second. The hub-may be of any size required by resorting to open instead of solid work, as represented in Fig. 7, wherein any desired number of spokes may be used. This form is particularly advantageous where large vessels are to be propelled, inasmuch as the leverage or hearing of the arms may be increased to any size, this form admitting more thandouble the leverage as where the arms only radiate from near the center. may be made -in parts and put together by sockets-and keys, as at letter K, Fig. 7, so as to be easilyinserted andseparated for repairhen made on this form, the center of the arm may be considerably smaller, as shown' by the dottel lines, there being but little force'exerted there beyond What is necessary to keep the blades in their right-angled position and to resist the twist in feathering the blades, the bearing being chiefly at the periphery of the rim.

* Thirdp'lhe. double blade on one shank,"

with more than-double the lengthof bearing through the hub'or rim as where single blades turning the lower blade also turns the upperand thereby saves half the friction of turning in any form where the blades are not on one connected arm and at right angles, ren-' ders this form paticularlysimpl'e'and advantageous, The friction, though less in this than most other plans,1nay be still further reduced by the application of anti-friction We claim no particularshaped blade stoiour. paddles, as various shapes may be used;

but as a general principle we prefer, where it can be applied, the narrow oar-shaped blade, reaching deep into the denser water, so as to Farsufr -OFFILCE. a

The arms make the engine labor in forcing it through without much disturbing the surface. \Ve are encouraged in this view by the narrow oar, the fins of the fish, and particularly by the long deep propellers of thed'e'er, that animal being among the very fastest of swimmers as well as of runners. In making these blades we would propose as the best material wrought-iron or steel, or both, with the oblong button or guide at the shank end of the blade forged solid, the blade next thereto being round, or nearly so, thence outwardly being flattened and widened, leaving the center the thickest and strongest, by which means great strength will be attained.

It is obvious that various modifications may be made in the construction of this propeller without departing from the principle of our invention, and we also propose to use it either as partially or Wholly submerged.

What we claim as our invention, and desire to secure by Letters Patent, is

The continuous arm orarms through the shaft, 11 ub, or rim, with a blade on each end thereof placed permanently at right angles to each other, so that when one is feathered in the water the other is placed in proper posi tion for propulsion by that act, also the reversing cam-frame, in combination with the oblong projections at the shank of the blades.

SAML. CHAMPION. 7 THOMAS CHAMPION. Witnesses:

JOHN T. BALL, i. 'l. SHUGERT. 

